Vehicle spring suspension



June 6, 1950 E. F. MORGAN 2,510,829

VEHICLE SPRING SUSPENSION a ATTORNEYS.

June 6, 1950 E. F, MORGAN 2,510,829

VEHICLE SPRING SUSPENSION Filed May 6, 1949 2 Sheets-Sheet 2 'zmfazgan lQQ\ iii 5g== M INVENTOH l I a BY l 1 l ATTORNEYS.

Patented June 6,. 1950 UNITED* SLT-'A515EIS vEHrcaEfsPnING SUSPENSIONEverett. n.. Morgan, New Alamy.,Imi.,l

Application Mayo, 19m;.seria1-No.-9-1;se5=

' 4*.Glaims:

This invention relates to motor "vehicles spring suspension devices, theprimary' objectoff-fV the inventionv being tov provide awspring.7suspension Vdeviceembodying coiled springs arerecognizedl as possessingexcessive shockl absorbing qualitiesY overA the usual` leaforelliptiealf spring commonly employed in motor vehicleconstruction.

Anvimportant objectiefthe inventicnie toipro'- videa. coiled springsuspension device; whichf-W-iil compensate for. movement of the Wheelsoithe vehicle incidenti to thev Vehicle moving over ir#- reg-ular roadysurfaces; thereby enhancing the-rid?- ing.V qualities of thevehicleequipped With the spring suspension device;

. A` further object of` theinvention ils-"toi provid'ea dual springconstruction, Whereina horizontalspring is provided"v and operatesasia-*yieldiab'le Wheel suspending device, and averticalcoi-led springcooperating with the horizontal? spring in providing a shock absorber tocompensate for excessive roadv shocks.

Another object of theinventionis:` to provide meanslfor' preventinglateral OrsWaying-movement of' the runningI gear With respect to* thefchassis ofv thevehicle, the sideisway preventing means also acting totemporarily restrict the frame and spring aX-le support'againstret-urning toY their norm-a1 positions tooA suddenly; to render thespring device ineffective and "atfthe same time provide means forlimiting tnemovef- `ment of the body ofthe vehicle withy respect' tothe? running gear, ontherebound;

the foregoingandl'other objects in view which will appear as thedescription proceeds, the invention consistsoicertain novel details of'construction and combina-tions of parts; hereinattermore fullydescribed and pointed out in the claims, it being understood thatchanges' may be made in the construction and arrangement of partsWithout departing from the spirit of' the invention as claimed.

i Referring tol the drawings:

Figure 1 isl a fragmentaf enlarged elevational view of a springsuspension device constructed in accordance with the invention, portionsthereof being shown in section;

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1.

Fig. 3 isa sectionalview takenon line 3'3 of Fig. 1.

Fig. 4 is a sectional View taken on. line 4-4 of Fig. 1.

, Fig. 5 is a perspective View of one section of thek shackle used asapart 'of theV invention:

Fig- 6 is' a perspective view of' the cooperating memberof the shackle.

Referring tothe. drawings inil detail, the referencecharacter 5indicates-the side rail of a chassis otavehiclei It will, ofcourse;betunderstood` that arspring suspension-devicesuoliaslconstitutesrtie subject matter"'oitheJ-presentinvention isiusedconnection With` both-r side rails oit7 aiveiiicle.

However; sincethe: spring suspension devicesat opposite; sidesoi'the1=veliicle chassis aref identiicai, oniyv one spring suspensionAdeviceewilllbe describedlinldetaili The spring device comprises'tne-liorizontall cylinder-l 63 one end thereof being provided WitiiLthearmAv which is pit/Totally con*- nectedj withL thefbracket 3,1 whichdepend'se from the' rail'- 5, at al' point adjacent tok the rear endi-oitries-ide` railfi'. y l

Asf clearly' showni'byif'li'ga oi the drawings,

the cylinder .Wis provided-With asubstantially lforvva-rdi4 endl of?`the-lever- I extends. This lever lHi' has.pivrrtal-4 connection-:Withthev sha-ft'y l' and extends throughtlie vertical housing" 9: Armsindica-tedL by the vreference clf'i'aracterl It extend upwardly atright' angles|- With-respect to the-for vWard end-fk ofthe-lever-y HAa-nd-i connect Witlr the head;k ii'throughthepivot pinA lili", the headJbeing of adiameter'to slidewithin the cylinder1v 6; the head being-ttedin oneendj of rthe coii spring i5 mounted Within the horizontal cylinder6: 'The oppositeiendof the coi-led spring` I is' fitted". over the head;it" secured* withinthe opposite. end of 'the cylinder. Sitheheadconstituting a'bearing for the forWa-rdend 'of the spring! 5i which' is'the Yexpansioie type.

The rear endzof the lever l It connects the piate F'Lwhicnis formed wtlropenings to ac'- comrnodate the endsof'the inverted U"bolts l8`, whichfit'over the rear 'axle housing I'il ofthe Vehicle; securing thelever H'to 'the' rear axle housing.. Extending from one side 0f" the vehicleheus.- ing 9;. is the spring supporting bracket 201, cm which the l'oWerend ofthe vertical. ooiler spring 2l is mounted, the upper endof'. the'coiled; spring Zlbeing'itted over the member Z2 disposedbeftween theiianges. of the side. rail.4 Thus.- it' will 'be'seen' that due to thisvconstructionl vertical movement of the' cylinder. B with respect.' totheside rails oftlie'i chassisis restrictedv 'A The shackle forniiiigapart' oi the presentinvent'ien,Y has' been designed" to. preventsid'esway of. the spring suspension mechanism-mitin respect to the. sidelrails of`` the. chassis, the...r shackle. at each side off thechassisembodying, spaced* upper vmembers ZipivotalIy connectedwith theAside rai` ofi the'chassis. at 2341. The.y shackle aIsoi-necludesavlowerf section 25, pivotally connected with the; housing. 9through. thefmediumof the pivots 7.6.`Which are in. the term ot. boltsextended through. the-side Walls ot thehousing: 9 at the upperendthereof. .'Iaese lowes-sections 25.179;

the shackle have tubular members 2I formed integral with the arms 28 ofthe lower sections, the tubular members 21 being of lengths to engage attheir inner ends. The tubular members 2'l are pivotally connected bymeans of the bolt 29, on which the upper members and lower sections ofthe shackle pivot. Thus it will be seen that this shackle constructioneliminates side sway of the vehicle.

As clearly shown in Figs. and 6 of the drawings, the members 23 havetheir lower ends cut at oblique angles, as indicated at 30, whichangular end portions of the members 23 are designed to move over theinclined surfaces 3| of the cooperating lower sections of the shackle,thereby restricting pivotal movement of the sections of the shackle inone direction.

As shown by Fig. 1 of the drawings, the connections between the shackleand the housing 9 .and side rail 5, are in vertical alinement so that`upon vertical movement of the spring suspension device towards the siderail of the chassis, when the shackle is in a position as shown by Fig.1 of the drawings, will cause the sections of the shackle to pivot withrespect to each other and a support for the forward end 32 of the brace`rod 33 that is welded to the lever Il. A forward brace rod 34 isconnected with the forward end of the cylinder 6 and has its rearwardend formed with a bearing 35 mounted for pivotal movement on the shaftI2. This structure adequately braces the suspension device to furtherprevent side sway.

In operation, it is obvious that when the wheels of the vehicle whichare connected with the axle supported Within the axle housing I9, moveupwardly the arm I3 swings forwardly tensioning the spring I5. Uponfurther upward movement of the rear wheels and axle, the spring 2l willbe tensioned, the spring 2l acting as a shock absorber. With themovement of the spring suspension device with respect to the vehiclechassis, that is when the springs are compressed, the pivoted sectionsof the shackle will operate, permitting of such vertical movement of thespring suspension device, and at the same time securing the springsuspension device and chassis against side sway.

Having thus described the invention, what is claimed is:

1. The combination with the side rails of a vehicle chassis and the rearaxle housing thereof, of a spring suspension device comprising asubstantially horizontal cylindrical housing pivotally mounted on theside rail, a coiled expansion spring tted within the cylindricalhousing, a lever pivotally mounted at one end of the housing and beingconnected at one end with one end of the coiled spring, means forconnecting the opposite end of the lever to the rear axle housing,whereby vertical movement of the axle housing, moves one end of thelever against the tension of the spring, restricting movement of thelever and rear axle housing, and a vertical spring disposed between oneend of the cylindrical spring housing and the chassis, restrictingvertical movement of the cylindrical housing and axle housing.

2. The combination with the side rails of a vehicle chassis and the rearaxle housing thereof, of a spring suspension device comprising asubstantially horizontal cylindrical housing pivotally mounted on theside rail, a coiled expansion spring fitted within the cylindricalhousing, a lever pivotally mounted at one end of the housing and beingconnected at one end with one end of the coiled spring, means forconnecting the opposite end of the lever to the rear axle housing,whereby vertical movement of the axle housing moves one end of the leveragainst the tension of the spring, restricting movement of the lever andrear axle housing, a vertical spring disposed between one end of thecylindrical spring housing and the chassis, restricting verticalmovement of the cylindrical housing and axle housing, and means forlimiting movement in opposite directions of the lever and chassis duringrebound.

3. The combination with the side rails of a vehicle chassis and the rearaxle housing thereof, of a spring suspension device comprisinghorizontally disposed cylindrical spring housings, coiled springsmounted within the housings, brackets depending from the side rails towhich the spring housings are pivotally connected, a lever pivotallyconnected to one end of each spring housing, means for connecting saidlevers to the rear axle housing to move therewith and extending at rightangles from the levers, said pivoted levers providing a connectionbetween the springs and axle, regulating the vertical movements of theaxle, vertical springs mounted between the spring housings and siderails of the vehicle chassis restricting vertical movement of the springhousings and shackles pivotally connected with the side rails of thechassis and cylindrical spring housings, restricting vertical andlateral movement of the cylindrical spring housings with respect to thechassis.

4. The combination with the side rails of a vehicle chassis and the rearaxle housing thereof, of a spring suspension device comprising ahorizontal cylindrical spring housing, an expansible spring mountedwithin the spring housing, a head movable within one end of the springhousing in contact with one end of the coiled spring, a lever pivotallyconnected to the spring housing, an arm extending vertically from oneend of the lever, pivotally connected to the head, one end of the leverbeing connected to the axle housing, a vertical coiled spring connectedbetween said spring housing and chassis, whereby vertical movement ofthe axle housing and lever exerts pressure on said springs, and shacklesconnecting the spring housing and chassis restricting side sway of thespring suspenion device with respect to the chassis.

EVERETT F. MORGAN.

REFERENCES ClTED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,178,639 Guest Apr. 11, 19161,681,050 Robinson Aug. 14, 1928 2,419,104 Wilfert et al Apr. 15, 1947FOREIGN PATENTS Number Country Date 268,172 Great Britain Mar. 31, 1927

